Present address: Department of Pathobiology, University of Pennsylvania, Philadelphia, PA 19104, USA.
In vivo exposure of murine dendritic cell and macrophage bone marrow progenitors to the phosphorylcholine-containing filarial nematode glycoprotein ES-62 polarizes their differentiation to an anti-inflammatory phenotype
Version of Record online: 18 NOV 2004
Volume 113, Issue 4, pages 491–498, December 2004
How to Cite
Goodridge, H. S., Marshall, F. A., Wilson, E. H., Houston, K. M., Liew, F. Y., Harnett, M. M. and Harnett, W. (2004), In vivo exposure of murine dendritic cell and macrophage bone marrow progenitors to the phosphorylcholine-containing filarial nematode glycoprotein ES-62 polarizes their differentiation to an anti-inflammatory phenotype. Immunology, 113: 491–498. doi: 10.1111/j.1365-2567.2004.01993.x
- Issue online: 18 NOV 2004
- Version of Record online: 18 NOV 2004
- Received 1 September 2004; accepted 8 September 2004.
- dendritic cell;
- filarial nematode;
We have previously shown in an in vitro study that the filarial nematode phosphorylcholine (PC)-containing glycoprotein ES-62 promotes a murine dendritic cell (DC) phenotype that induces T helper type 2 (Th2) responses. We now show that, in addition to directly priming Th2 responses, ES-62 can act to dampen down the pro-inflammatory DC responses elicited by lipopolysaccharide. Furthermore, we also demonstrate that murine DCs and macrophages derived ex vivo from bone marrow cells exposed in vivo to ES-62 by release from osmotic pumps are hyporesponsive to subsequent stimulation with lipopolysaccharide. These effects can be largely mimicked by exposure to the PC moiety of ES-62 conjugated to an irrelevant protein. The data we provide are, as far as we aware, the first to show that a defined pathogen product can modulate the developmental pathway of bone marrow cells of the immune system in vivo. Such a finding could have important implications for the use of pathogen products or their derivatives for immunotherapy.